Datasheet

UNISONIC TECHNOLOGIES CO., LTD
MMBD4148
DIODE
HIGH-SPEED
SWITCHING DIODE

DESCRIPTION
The UTC MMBD4148 is designed for high-speed switching
application in hybrid thick-and thin-film circuits. The devices is
manufactured by the silicon epitaxial planar process and packed
in plastic surface mount package.

FEATURES
* Ultra-high speed
* Low forward voltage
* Fast reverse recovery time

SYMBOL

ORDERING INFORMATION
Ordering Number
Package
Lead Free
Halogen Free
MMBD4148L-AE3-R
MMBD4148G-AE3-R
SOT-23
Note: Pin assignment: A: Anode C: Cathode NC: No Connection

Pin Assignment
1
2
3
NC
A
C
Packing
Tape Reel
MARKING
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Copyright © 2013 Unisonic Technologies Co., Ltd
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QW-R601-088, A
MMBD4148

DIODE
ABSOLUTE MAXIMUM RATINGS (TA=25℃, unless otherwise specified)
PARAMETER
SYMBOL
RATINGS
UNIT
Maximum Repetitive Reverse Voltage
VRRM
100
V
Average Rectified Forward Current
IF(AV)
250
mA
1.0
A
Pulse Width = 1.0 sec
Non-repetitive Peak
IFSM
Forward Surge Current
Pulse Width = 1.0 μs
2.0
A
Power Dissipation (Note 3)
PD
200
mW
Junction Temperature
TJ
-65 ~ +150
°C
Storage Temperature
TSTG
-65 ~ +150
°C
Note: 1. These ratings are based on a maximum junction temperature of 200°C.
2. Absolute maximum ratings are those values beyond which the device could be permanently damaged.
Absolute maximum ratings are stress ratings only and functional device operation is not implied.
3. Device mounted on FR-4 PCB minimum land pad

THERMAL DATA
CHARACTERISTIC
Junction to Ambient

SYMBOL
θJA
RATINGS
500
UNIT
°C/W
ELECTRICAL CHARACTERISTICS (TA=25°C, unless otherwise specified)
PARAMETER
SYMBOL
Breakdown Voltage
VR
Forward Voltage
VF
Reverse Current
IR
Total Capacitance
CT
Reverse Recovery Time
trr
TEST CONDITIONS
IR=5.0μA
IR=100μA
IF=10mA
VR=20V
VR=75V
VR=0V, f =1.0MHz
IF=10mA, VR=6.0V
IRR=1.0mA, RL=100Ω
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
MIN
75
100
TYP
MAX
0.855
25
5.0
4.0
UNIT
V
V
V
nA
μA
pF
4.0
ns
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MMBD4148

DIODE
TYPICAL CHARACTERISTICS
Reverse Current vs. Reverse Voltage
IR - 10 ~ 100 V
Reverse Voltage, VR (V)
Reverse Current, IR (nA)
Reverse Voltage vs. Reverse Current
BV - 1.0 ~ 100μA
Forward Voltage vs. Forward Current
VF - 1 ~ 100μA
Forward Voltage vs. Forward Current
VF - 10 ~ 800 mA
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
Forward Voltage vs. Forward Current
VF - 0.1 ~ 10 mA
Forward Voltage vs. Ambient Temperature
VF - 0.01 - 20 mA (-40 ~ +65°C)
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MMBD4148
TYPICAL CHARACTERISTICS(Cont.)
Total Capacitance
0.90
Reverse Recovery Time vs. Reverse
Recovery Current
4.0
TA = 25°C
TA = 25°C
3.5
3.0
0.85
2.5
2.0
0.80
1.5
0.75
0
4
2
6
8
10
12
14
1.0
10
20
30
40
50
80
Reverse Recovery Current, IRR (mA)
IF = 10mA - IRR = 1.0mA - RIoop = 100Ω
Reverse Voltage (V)
Average Rectified Current (IF(AV))vs.
Ambient Temperature (TA)
Current (mA)

DIODE
IF(AV
)
- AV
ERA
GE R
ECT
IF
IED
CUR
REN
T-
mA
UTC assum es no responsibility for equipm ent failures that result from using products at v alues that
exceed, ev en m om entarily, rated v alues (such as m axim um ratings, operating condition ranges, or
other param eters) listed in products specifications of any and all UTC products described or contained
herein. UTC products are not designed for use in life support appliances, dev ices or system s where
m alfunction of these products can be reasonably expected to result in personal injury. Reproduction in
whole or in part is prohibited without the prior written consent of the copyright owner. The inform ation
presented in this docum ent does not form part of any quotation or contract, is believ ed to be accurate
and reliable and m ay be changed without notice.
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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